JPS5514278A - Molding method - Google Patents

Molding method

Info

Publication number
JPS5514278A
JPS5514278A JP8755878A JP8755878A JPS5514278A JP S5514278 A JPS5514278 A JP S5514278A JP 8755878 A JP8755878 A JP 8755878A JP 8755878 A JP8755878 A JP 8755878A JP S5514278 A JPS5514278 A JP S5514278A
Authority
JP
Japan
Prior art keywords
resin
molding
molding material
cooled
polyester resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8755878A
Other languages
Japanese (ja)
Inventor
Shinichi Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shiseido Co Ltd filed Critical Shiseido Co Ltd
Priority to JP8755878A priority Critical patent/JPS5514278A/en
Publication of JPS5514278A publication Critical patent/JPS5514278A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/7207—Heating or cooling of the moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3828—Moulds made of at least two different materials having different thermal conductivities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • B29C2043/527—Heating or cooling selectively cooling, e.g. locally, on the surface of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0013—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0041—Crystalline

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To mold a transparent resin, such as polyester resin and form a slightly opaque pattern on the molded product simultaneously by gradually cooling a part of the molded resin to crystallize the cooled part only.
CONSTITUTION: In the molding of a polyester resin, such as polyethylene terephthalate, metal molds 1, 2, a part of the molding surface of which is preferably formed with such a molding material 4 that has a low thermal conductivity and that is neither changed in quality nor deformed at a resin molding temperature, is used. The polyester resin is injected into the molds from a gate 3 and that part of the resin which is contacted by the molding material 4 is gradually cooled. The cooled part of the resin is thus crystallized to be formed into a slightly opaque pattern. The molding material 4 preferably consists of silicone rubber.
COPYRIGHT: (C)1980,JPO&Japio
JP8755878A 1978-07-18 1978-07-18 Molding method Pending JPS5514278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8755878A JPS5514278A (en) 1978-07-18 1978-07-18 Molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8755878A JPS5514278A (en) 1978-07-18 1978-07-18 Molding method

Publications (1)

Publication Number Publication Date
JPS5514278A true JPS5514278A (en) 1980-01-31

Family

ID=13918310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8755878A Pending JPS5514278A (en) 1978-07-18 1978-07-18 Molding method

Country Status (1)

Country Link
JP (1) JPS5514278A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933205A (en) * 1972-07-26 1974-03-27
US4884961A (en) * 1985-07-30 1989-12-05 Yoshino Kogyosho Co., Ltd. Apparatus for forming plastic containers
WO1998046410A1 (en) * 1997-04-16 1998-10-22 Husky Injection Molding Systems Ltd. Partial crystallization method and apparatus of amorphous plastic articles
EP1872922A1 (en) * 2006-06-27 2008-01-02 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Method and apparatus for manufacturing a polymeric article

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933205A (en) * 1972-07-26 1974-03-27
JPS5514278B2 (en) * 1972-07-26 1980-04-15
US4884961A (en) * 1985-07-30 1989-12-05 Yoshino Kogyosho Co., Ltd. Apparatus for forming plastic containers
WO1998046410A1 (en) * 1997-04-16 1998-10-22 Husky Injection Molding Systems Ltd. Partial crystallization method and apparatus of amorphous plastic articles
US6168740B1 (en) 1997-04-16 2001-01-02 Husky Injection Molding Systems Ltd. Partial crystallization method of amorphous plastic articles
US6413075B1 (en) * 1997-04-16 2002-07-02 Husky Injection Molding Systems Ltd. Partial crystallization apparatus of amorphous plastic articles
CN100441391C (en) * 1997-04-16 2008-12-10 哈斯基注模系统有限公司 Core for use in injection molding plastic articles
EP1872922A1 (en) * 2006-06-27 2008-01-02 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Method and apparatus for manufacturing a polymeric article
WO2008002138A1 (en) * 2006-06-27 2008-01-03 Nederlandse Organisatie Voor Toegepast -Natuurwetenschappelijk Onderzoek Tno Method and apparatus for manufacturing a polymeric article

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